Tank-siphon.



F. G. RUF & W. KLESlUS.

TANK SIPHUH.

APPLICATION FILED APR.4. 191;.

Patented Feb. 19, 1918.

WITNESSES A TTURA EYS FRANK GQRU AND "WILLIAM KLESIUS, on NEW YORK, m

TANK-SIPHON.

Specification of Letters Patent. Patented Feb. 19, 1918'.

Application filed April 4, 1917. serial No. 159,762.

To all whom it may concern:

Be it known that we, FRANK G. Bur, a cltizen of the United States, and a resident of the city of New York, borough of Man- 'hattan, in the county and. State of New 'Ourinvention relates to tank siphons' particularly adaptable for watercloset tanks. An ob ect of the invention is to pro vlde an lnexpensive and efficient device which is simple in construction and which will not get out of order easily.

iith the above ancl other objects in View, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings, forming part of the application, similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a section through a tank provided with an embodiment of our invention, a portion of which is shown in section to illustrate the details of construction;

.Fig. 2 is a horizontal section on line 2-2, Fig. 1; and F Fig. 3 is a similar section on line 3-3,

Referring to the drawings, the siphon is in the shape of an inverted U, theshorter leg 5 of which has a bypass 6 at the open end thereof, while the longer leg 7 is reduced in cross section from a point between the spill 8, which is formed between the two legs, and the end of the shorter leg. Preferably the diameter of the shorter leg and the wider portion of the longer leg are substantially alike.

A piston 10 having a loose fit in the leg 5 is provided with guides 11- to prevent the.

binding of the piston within the leg 5 of the siphon. The guide 11, which is of tubular form, has apertures 12 which register with a cut-away 13 in the leg 5, which forms the spill. A connecting rod 14 unites the piston 10 to an arcuated arm 15 which extends from a longer arm 16 of a bell-crank lever 17. The bell crank is pivotally sup-- siphon.

having an arcuated extension, we ehminate ported on an extension 18 from the siphon. The shorter arm 19 of the bell-crank lever may be connected to a suitable flexible member 20 for operating the bell-crank lever. The motion of the lever on its pivot. is

limited by stops 21 provided on the extension 18. v

The curvature of the arcuated arm 15 is such that it will'swinginto theshorter siphon leg 5 without interference and bring the piston 10 against the top 22 of the By providing a bell-crank arm a pull rod from the piston through the top of siphon, which requires a packing which,

after wear, allows air to pass into the siphon and interfere with the working of same. This lever arrangement also permits a large lift with a comparatively-small pull on the flexible member 20.

The upward displacement ofthe piston will force over the spillway 9' the volume of water inclosed between the level A of the water in a the tank and the top of the by-pass 6- of the shorter siphon leg 5. As this volume of water is always larger than the volume of the non restricted section of the longer siphon leg 7, the flow in the longer leg 7 will be checked by the restricted section 8 there,of, thereby insuring the starting of the siphon by even the slowest possible displacement of said piston.

The suction caused by the outflow of the fluid willmaintain the piston 10 at the, top 22 against gravity upon it and upon the bell-crank lever until the air begins to pass through the slot 23 provided at the .end of the shorter siphon leg 5 for the arctiated ex- ,tension 15 ofthe bell-crank lever17. The

entering air will allow gravity to restore the piston '10 to its normal positlon; the

siphon action will be broken and permits the restitution of the level A he tankijf While We have describedt principle of operation, together with the device which .we now consider tobe thei'best embodiment thereof, we desire to have itunderstood that the device shown is merely illustrative and that such changes may bemade as are within the scope of the appended claims.

We claim:

' 1. A tank siphon in the shape of an inverted U having a shorter leg and a longer leg, apiston in theshorter legl a bell cra'nk i lever having an arcuated extension from the longer arm of the bell-crank lever, a connecting rod umtmg the ercuated extension to the piston and flexible means engaging the shorter-arm. at said bell-crank lever for operating the same.

' 2. A tank siphon in the shape ofan inverted U having a shorter leg and a longer leg, a piston in the shorter leg, an extension from the siphon, a bell-crank lever pivotally mounted on said extension, an arcuated extension from one arm of the hell-crank lever, a connecting rod uniting the arcuated extension to the piston, and a flexible member engaging the other arm of the bell-crank lever for operating the same.

3..A tank siphon in the shape of an inverted U having a shorter leg and a longer legrestricted in cross section in the lower part thereof from a point above the end of the shorter leg, 3 piston in the shorter leg, a pivotally-mounted bell-crank lever hav ing a shorter and a longer arm, an arouaterl extension -from the longer arm, a con nesting rod uniting the arcuated extension to the piston, and a flexible member engaging the shorter arm.

It. A tank siphon comprising an inverted U having a shorter leg and a longer leg re strictedin cross section in the lower part thereof from a point above the end of the shorter leg, a piston for the shorter leg, said shorter leg having a by-pass in the lower end thereof to allow the entrance-of raseJaae a fluid into said leg when the piston is at 7 ver, the curvature of said arcuated extension being such as to bring the piston to the top of the inverted U Without interference of said arcuated member with the shorter leg, and means for engaging the arms of the bellcrank lever for controlling its movement.

5. A tank siphon in the shape of an inverted U having a shorter and a longer leg, :1 piston in the shorter leg, an extension from the siphon, a bell-crank lever pivotally mounted on said extension and having a shorter and a longer arm, an arcuated extension from the longer arm of the bell-crank lever, a connecting rod uniting the piston to the arcuated extension, a flexible member connected to the shorter arm for operating the bell-crank lever, and means on said extension forengaging the shorter and the longer arms of the bell-crank lever at the extreme positions thereof.

FRANK G. RUF.

\VILLIAM KLESIUS' 

